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Mysterious X-rays from a Nearby Galaxy

Mysterious X-rays from a Nearby Galaxy

Space & Earth / Astronomy

created Nov 13, 2009 | popularity 4.1 / 5 (12) | comments 8

(PhysOrg.com) -- The nucleus of an active galaxy, an AGN, contains a massive black hole that is vigorously accreting material. In the process it typically ejects jets of particles and radiates brightly at ...


NASA's Great Observatories Celebrate International Year of Astronomy

NASA's Great Observatories Celebrate International Year of Astronomy

Space & Earth / Astronomy

created Nov 10, 2009 | popularity 5 / 5 (5) | comments 3

(PhysOrg.com) -- A never-before-seen view of the turbulent heart of our Milky Way galaxy is being unveiled by NASA on Nov. 10. This event will commemorate the 400 years since Galileo first turned his telescope ...


Sky merger yields sparkling dividends

Sky merger yields sparkling dividends

Space & Earth / Astronomy

created Oct 13, 2009 | popularity 4.7 / 5 (3) | comments 1

(PhysOrg.com) -- Not surprisingly, interacting galaxies have a dramatic effect on each other. Studies have revealed that as galaxies approach one another massive amounts of gas are pulled from each galaxy ...


Securing the web

Securing the web: New tool would automatically plug holes that hackers exploit

Technology / Computer Sciences

created Oct 08, 2009 | popularity 5 / 5 (2) | comments 2

(PhysOrg.com) -- More and more, malicious hackers are exploiting web site security holes to attack their victims' computers. Programmers try to identify those holes in advance and plug them with code that ...


Black Holes Go 'Mano a Mano'

Black Holes Go 'Mano a Mano'

Space & Earth / Astronomy

created Oct 06, 2009 | popularity 4.3 / 5 (15) | comments 11

(PhysOrg.com) -- Two black holes in galaxy NGC 6240 are only 3,000 light years apart -- and getting closer.


Cosmic entropy could be 100 times greater than previously thought

Physics / General Physics

created Oct 06, 2009 | popularity 4.3 / 5 (20) | comments 11

(PhysOrg.com) -- A new analysis of supermassive black holes has discovered the entropy of the universe is much greater than previously thought, which means it may also be very slightly closer to ultimate heat death.


NIU will use robotic submarine to explore melting occurring below Antarctic ice

NIU will use robotic submarine to explore melting occurring below Antarctic ice

Space & Earth / Earth Sciences

created Oct 05, 2009 | popularity 3 / 5 (2) | comments 0

(PhysOrg.com) -- Northern Illinois University geologists are helping to lead a multi-million-dollar, five-year investigation of melting near the base of the West Antarctic Ice Sheet (WAIS) using a 24-foot-long ...


NASA Satellite Data Show Progress of 2009 Antarctic Ozone Hole

NASA Satellite Data Show Progress of 2009 Antarctic Ozone Hole (w/ Video)

Space & Earth / Earth Sciences

created Sep 16, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- The annual ozone hole has started developing over the South Pole, and it appears that it will be comparable to ozone depletions over the past decade. This composite image from September 10 ...


This year the hole began forming "earlier than before" said WMO's expert on the ozone Geir Braathen

Ozone hole smaller in 2009 than 2008: WMO

Space & Earth / Earth Sciences

created Sep 16, 2009 | popularity not rated yet | comments 0

The World Meteorological Organisation said Wednesday that the ozone hole is expected to be smaller in 2009 than a year ago.


Sophisticated telescope camera debuts with peek at nest of black holes

Sophisticated telescope camera debuts with peek at nest of black holes

Space & Earth / Astronomy

created Sep 15, 2009 | popularity 4.8 / 5 (13) | comments 0

Less than two months after they inaugurated the world's largest telescope, University of Florida astronomers have used one of the world's most advanced telescopic instruments to gather images of the heavens.


Mass. center to build ocean monitoring stations

Space & Earth / Earth Sciences

created Sep 07, 2009 | popularity 4 / 5 (2) | comments 0

(AP) -- A Massachusetts ocean studies institute is building underwater data collection stations to help researchers understand the ocean's role in climate change.


Belgium's Princess Elisabeth base in Antartica

Ozone: Climate change boosts ultraviolet risk for high latitudes

Space & Earth / Earth Sciences

created Sep 06, 2009 | popularity 2.2 / 5 (13) | comments 5

(PhysOrg.com) -- Physicists at the University of Toronto have discovered that changes in the Earth's ozone layer due to climate change will reduce the amount of ultraviolet (UV) radiation in northern high ...


What's Holding Antarctic Sea Ice Back From Melting?

What's Holding Antarctic Sea Ice Back From Melting?

Space & Earth / Earth Sciences

created Sep 02, 2009 | popularity 3.1 / 5 (9) | comments 1

(PhysOrg.com) -- Global temperatures are increasing. Sea levels are rising. Ice sheets in many areas of the world are retreating. Yet there’s something peculiar going on in the oceans around Antarctica: even ...


NGC 4945: The Milky Way's not-so-distant Cousin

NGC 4945: The Milky Way's not-so-distant Cousin

Space & Earth / Astronomy

created Sep 02, 2009 | popularity 4.7 / 5 (3) | comments 2

(PhysOrg.com) -- ESO has released a striking new image of a nearby galaxy that many astronomers think closely resembles our own Milky Way. Though the galaxy is seen edge-on, observations of NGC 4945 suggest ...


Giant Galaxy Hosts the Most Distant Supermassive Black Hole

Giant Galaxy Hosts the Most Distant Supermassive Black Hole

Space & Earth / Astronomy

created Sep 02, 2009 | popularity 4.3 / 5 (15) | comments 26

(PhysOrg.com) -- University of Hawaii (UH) astronomer Dr. Tomotsugu Goto and colleagues have discovered a giant galaxy surrounding the most distant supermassive black hole ever found. The galaxy, so distant ...




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